Drum.



G. H. LOGAN.

` DRUM.

APPLICATION FILED NOV.14, 1910.

1,018,767. v Patented Feb. 27, 1912.

2 SHEETS-SHEET 1.

Wit/naw@ G. H. LOGAN.

DRUM.

APPLIOATION FILED Nov. 14, 1910.

11,018,767. Patented Feb. 27, 1912.

2 SHEETS-SHEET 2.

UIIIIHIIIIJII.

@1Mo/muni @witnesses GEORGE H. LOGAN, F BRADDOCK, PENNSYLVANIA.

DRUM.

Specification of Letters Patent.

Patented Feb. 27, 1912.

Application filed November 14, 1910. Serial No. 592,248.

To all wiz-0m t may concern.'

Be it known that I, GEORGE H. LOGAN, a citizen of the United States, residing at Braddock, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Drums, of which the following is a specification.

This invention relates to drums and the Y object of the invention is to provide a drum with an adjustable snare.

Another object is to provide a drum having a novel means for attaching a snare thereto.

Another object is to provide a drum having a fabric drum head and the means for putting the head together in order to secure the best results therefrom.

With the above and other objects in view,

I have constructed the drum illustrated inthe accompanying drawings in which,

Figure l is a side elevation of a drum with a portion broken away so as to show` a vertical section thereof, Fig. 2 shows a portion of the side of a drum, having means thereon for securing one end of the snares, Fig. 3 is a fragmental view of the bottom of a drum showing how the opposite ends of the snares of the drum are attached to the rim of the drum, Fig. 4 is a view of the top of the drum showing one layer of the fabric head partially broken away, and Fig. 5 is a fragmental vertical sectional view showing the manner of seating the rim on the head holding hoop.

Like reference numerals refer tolike parts throughout the several views of the drawings and in the specification, in which- 1 indicates a drum having a cylindrical body member 2, upon which are seated heads 3 and 4, which are made by cementing together with a non-brittle cement, two or more layers of fabric 3a and 3b (preferably linen) which is preferably made of different grades of texture, 3a being of a fine texture in order to lend tone to the drum, and 3b of n coarser texture in order to furnish strength and durability. These layers of fabric are cut on the bias and' are laid crosswise of one another so that the pull in stretching will be equal in every direction, which is extremely .mediumof the hooks 12 a important in order to produce a perfect head. The fabric is-treated with a cement composed of fish glue, rubber, turpentine, shellac, white of eggs, gum arabic, and linseed oil, used in proper proportions. These drum heads are secured to hoops 5, andthe heads are placed over the cylinder 2, and

have seated against the hoops thereonv the rims 6 and 7, the free edges of which are rolled outwardly. A linen head treated with these ingredients, I nd will produce a tone that cannot be surpassed, if equaled, by the natural skin head, while it is as durable and cannot be affected by varying temperatures or bymoisture.

The rims 6 and 7 are laced together with a cord 8. A member 9 holds an elastic band 10, to the free end of which is a metal reinforcing plate 11, which holds through the which is adapted to hold the snare cords 14 properly spread apart and to the elastic member 10 through the medium of the hooks aforesaid. An opening l5 is provided in the rim 6 for the passage of the assembly of vsnare cords 14, the other ends of these cords being laced through lace holes in the opposite side of/ the rim as shown in dotted lines spreader plate 13,

at 16 in Fig. 3. These openings and the opening 15 are so located on the rim that the snare lies flat on the drum head 4.

The rims have an outer roll 17, which is adapted to hold the cord far enough away from the body rim to permit the stretchers 18 to rest on the rim close against the rolls in order that the cord may be laced very tight before bringing the stretchers into use. With this construction the stretchers are given greater play. The inner rolls 18 on the rims abut the hoops 5. p

Fig. 2 illustrates another means for securing the snare ends instead of the elastic. Springs 19 are used which are secured directly to the snare spreading plate 20 at one end and to the member 21 having a bolt 22 swiveled thereto at 23. The bolt also passes through a screwthreaded member 24 and is adapted to screw back and forth thereon in order to procure any desired tension forthe snare.

Having described my invention, claim shellac, White of egg, gum arabic and 1inand desire to secure by Letters Patent seed oil, said layers being cemented together. 10

A drum having a head of two layers of In testimony whereof I aix my signature, fabric, one of said layers being of finely in presence of two Witnesses.

5 Woven material and the other layer of very GEORGE H. LOGAN.

coarse material adapted to support said ne Witnesses: layer, said fine layer being treated with a WM. CONRAD,

filler comprising glue, rubber, turpentine, ROBERT J. BLACK. 

